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Posted by J. Clarke on April 13, 2005, 3:39 pm
Please log in for more thread options Paul Rubin wrote:
>> > Toshiba already had a 120gb notebook drive, model #MHV2120AT.
>>
>> 1) It's a Fujitsu, not a Toshiba.
>
> Something wrong with Fujitsu?
Well, if Fujitsu makes the drive and you go to Toshiba looking to buy it
you're going to have a pretty long wait.
>> 2) Not released yet as a 120GB, it's still vapourware.
>
> Hmm, ok.
>
>> 3) At 4200RPM, who the heck would want one?
>
> This doesn't bother me and I've so far been buying 4200 rpm drives in
> preference to 5400 rpm. 4200mm drives are quieter and use less power
> and perhaps are more reliable (less heat). The seek latency is about
> the same as 5400 rpm drives even if the rotational latency is a little
> longer. Most laptop applications should not be seek intensive; if
> they are, your software is badly designed or you don't have enough ram.
>
>> Hitachi has a 7200RPM 80/100/120GB laptop HD to be released "soon".
>
> This kind of scares me. I still associate Hitachi with IBM Travelstars
> which had bad reliability problems even at 4200 rpm. Lately I've been
> buying only Toshiba drives.
>
> I notice the Hitachi 7200 rpm 60gb drives come in both a 7K60 version
> and an E7K60 (Enterprise?) version. The E version claims to be built
> for continuous operation and is the same price (zipzoomfly.com). I
> wonder what the differences really are and whether the E version is
> mainly intended for blade servers and is somehow unsuitable for laptops.
Reading the specs, it seems that rather than being built differently, the
E7K60 simply requires more cooling--its rated for a maximum ambient of 40C
vs 55 for the regular 7K60. The E7K60 is also available as a 40 GB drive
for some reason.
There may be differences in the firmware.
> The 7200 rpm Hitachis do have 2x the track to track seek speed of the
> Toshiba 4200 and 5400 rpm drives, so are likely to make lots of programs
> run noticably faster.
--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)
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